Hacksaw-frame.



L. M. FAIRBANKS.

HAOKSAW FRAME.

APPLICATION FILED FEB. 18, 1914.

1,103,495. Patented July 14, 1914.

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WITED STATES PATENT OFFICE.

LEONARD M. FAIRBANKS, OF NEW HAVEN, CONNECTICUT,

THOMPSON & SON C0., OF NEW HAVEN, CONNECTICUT,

ASSIGNOR 'ro THE E. e.

A ooarona'rron.

I-IAGKSAW-FRAME.

Specification of Letters Patent.

Patented July 14, 1914.

To all whom it may concern Be it known that I, LEONARD M. FAIR- BANKS, acitizen of the United States, residing at New Haven, in the county ofNew Haven and State of Connecticut, have invented a new and usefulImprovement in Hacksaw-Frames; and I do hereby declare the following,when taken in connection with the accompanying drawings and thecharacters of reference marked thereon, to be a full, clear, and exactdescription of the same, and which said drawings constitute part of thisapplication, and represent, in

Figure 1 a side view of a hack saw frame constructed in accordance withmy inven tion. Fig. 2 a side view of the slide member, detached. Fig. 3a broken side view showing the slide moved with relation to the socketso as to release the clamping member. Fig. 4 a sectional view on theline a-Z) of Fig. 1. Fig. 5 a sectional View onthe line cd of Fig. 3.Fig. 6 a plan view of the locking loop, detached.

This invention relates to an improvement in hack saw frames, andparticularly to frames which are adjustable for saw blades of differentlengths, the object of the invention being to provide a simpleconstruction whereby the frame may be readily adjusted for differentlengths of saw blades, and the invention consists in the constructionhereinafter described and particularly recited in the claims.

In carrying out my invention, I employ a socket member 2 which, asherein shown, is formed from a piece of metal folded to form a tubularsocket which is attached to one end 3 of the saw frame to which thehandle l is connected, the outer end 8 of the socket being beveled forthe purpose as will hereinafter appear. The other end 5 of the saw framehas a straight member which I will call a slide 6 formed in its inneredge with notches 7 spaced apart corresponding to the different lengthsof saws to be used. Upon the slide 6 is a clamping loop 9 which isadapted to freely ride upon the slide and have its lower edge engagedwith any one of the notches 7 so as to form an abutment for the outerend of the socket-piece 2. The ends 3 and 5 of the saw frame areprovided with saw-blade holding members 10 and 11 of any approvedconstruction one of them being adjustable so as to impose necessarystrain upon the saw blades. Before the saw blade is inserted theclamping loop is moved upon the slide 6 to the required point, and thenthe socket member moved up against it, and owing to the inclination ofthe outer end of the socket-member, the clamping loop will be tilted;and as its inner end is held in one of the notches 7 it follows that arigid stop is provided to limit the movement of the socket-member withrelation to the slide, and the parts will be held in this position bythe tension placed upon the saw blade.

With this construction the parts are readily adjustable as it is onlynecessary to move the clamping loop 9 upon the slide to fix a stop whichlimits the movement of the socket member upon the slide.

I claim 1. A hack saw frame comprising a socket member, a slide, and astop-loop, the outer end of the socket member beveled and adapted whenforced against the stop-loop to cause it to engage with the slidewhereby it is held against further movement into the socket.

2. In a hack saw frame comprising a socket member, a slide and aclamping-loop the outer end of the socket member beveled, one edge ofthe slide formed with notches with which one edge of the loop mayengage, Whereby a stop is formed to limit the movement of the socketonto the slide.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

LEONARD M. FAIRBANKS.

Witnesses:

G. B. LEAVANWORTH, THOS F. MAHER, Jr.

Copies 01' this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, .D. G.

